Fatal error: Uncaught Error: Class "Opis\Closure\SerializableClosure" not found in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\laravel\framework\src\Illuminate\Queue\SerializableClosure.php:10 Stack trace: #0 {main} thrown in C:\AppServ\Apache\2.4.58\htdocs\sets\vendor\laravel\framework\src\Illuminate\Queue\SerializableClosure.php on line 10